Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1693 Register 150564 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150564 US Marine Corps 1965-04-13Sikorsky UH-34D, cn 58-1693, ff:? del USMC as UH-34D, 150564, unk w/o Southeast Asia, 13Apr65. Send Updates Use APP to upload photo @ (optional) When Now? / / Send